137439477751 has 2 divisors, whose sum is σ = 137439477752. Its totient is φ = 137439477750.

The previous prime is 137439477739. The next prime is 137439477781. The reversal of 137439477751 is 157774934731.

137439477751 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137439477751 - 2¹¹ = 137439475703 is a prime.

It is a super-2 number, since 2×137439477751² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137439477781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68719738875 + 68719738876.

It is an arithmetic number, because the mean of its divisors is an integer number (68719738876).

Almost surely, 2^137439477751 is an apocalyptic number.

137439477751 is a deficient number, since it is larger than the sum of its proper divisors (1).

137439477751 is an equidigital number, since it uses as much as digits as its factorization.

137439477751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15558480, while the sum is 58.

The spelling of 137439477751 in words is "one hundred thirty-seven billion, four hundred thirty-nine million, four hundred seventy-seven thousand, seven hundred fifty-one".